449220307 has 4 divisors (see below), whose sum is σ = 454906720. Its totient is φ = 443533896.

The previous prime is 449220253. The next prime is 449220329. The reversal of 449220307 is 703022944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449220307 - 2¹⁹ = 448696019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449220377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2843088 + ... + 2843245.

It is an arithmetic number, because the mean of its divisors is an integer number (113726680).

Almost surely, 2^449220307 is an apocalyptic number.

449220307 is a deficient number, since it is larger than the sum of its proper divisors (5686413).

449220307 is an equidigital number, since it uses as much as digits as its factorization.

449220307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686412.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 449220307 is about 21194.8179279748. The cubic root of 449220307 is about 765.8665942372.

The spelling of 449220307 in words is "four hundred forty-nine million, two hundred twenty thousand, three hundred seven".